Expression of protein kinase C subspecies in rat retina

Abstract
An extract of rat retina was subjected to Mono Q followed by chromatography on hydroxyapatite, and the protein kinase C (PKC) subspecies were identified by immunobiol and biochemical analysis. It was found that, although the relative activities assayed with myelin basic protein as a common phosphate acceptor vary greatly with one another, the α-, βI-, βII-, γ-, δ-, ε-, ξ-, and another structurally unknown PKC subspecies are expressed in this tissue. Thus, the retina is a unique tissue which expresses most of the PKC subspecies so far identified in mammals.